I came across this little snippet at www.ecommercetimes.com
Nice one!The European Court of Justice has ruled that file-sharers must remain anonymous, meaning Internet service providers are prohibited from turning over the identities of alleged file-sharers. In the past, the music industry has used such information to file lawsuits against those it believes are swapping copyright-protected music files without authorization. The ruling deals a major blow to the music industry's worldwide campaign to crack down on copyright infringement.
"It might be a breach of copyright but you cannot violate people's privacy"
I bet that there are some very unhappy bunnies at the RIAA and MPAA?
I will try to find some more detailed information on the legal side and will edit this post/thread accordingly
Here is some more: